Originally Posted by SMC Racing
This pack is the lowest priced 5200mAh pack on the market using 100% Lithium Cobalt Oxide(LCO). Packs at a similar price typically use a blend of LCO and LicoMnNio2 which is a cheaper material. This lowers the cost of the packs but also decreases the performance. One way to tell if a pack doesn't use 100% LCO is to check the weight. Packs with 100% LCO will typically have a higher weight.
So the 4S-5200mAh pack linked in the op = 525g
I own the following pack which weighs only 440g:
Graphene Extreme V2 - 4S-5200mAh LCG
After 9+ race days + practice (roughly 50 cycles) I am still showing low IR for this pack and would be interested in seeing the IR readings for the pack in the OP, also worth noting that added weight will effect the performance:
